Mr. Sanchez surveyed classes to aid in planning the end-of-year party. For the first sample, Mr. Sanchez surveyed every third person on each first-period class roster. For the second sample, Mr. Sanchez surveyed his five honors math classes. Which statement about Mr. Sanchez's samples is true? End-of-Year Party Survey Sample 1 - Water Park 21 - Bowling/Arcade 36 - Zoo 16 - Dance & Dinner 27 Sample 2 - Water Park 36 - Bowling/Arcade 28 - Zoo 24 - Dance & Dinner 12 a. Sample 1 is biased. b. Sample 2 is biased. c. Both samples are biased. d. Neither sample is biased.
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